Envelop.



. Patented Aug. 26, |902. J. E. FITZ(1`| E IALD.4 ENVELoP. (Application med Dec. 1o, 1901.) (No Model.)

UNNHUWWIHH'INIIHN UNITED STATES 'PATENT AOmHoE.

JOHN EDwARD FITZGERALD, oEEoSToN, MASSACHUSETTS.

ENVELOP.

SPECIFICATION forming part of Letters ratentlvaroaees, dated 'August 26, 1902. Application filed December 1o, 1901.'A vserial No. 85,305. (No model.)

To all whom #vaag/concern.-

Be it known thatI, JOHN EDWARD FITZ- out destroying or defacing it in some manner,

thereby making it'possible to` detect an attempt to tamper'with its Contents.

The further object of my invention is to provide an envelop having registering slits or openings in the side andbottom flaps, having its upper or sealing flap provided with -an elongation or tongue gummedron the outer side, said tongue or extension after having its gummed side moistened being adapted to be inserted between the slits of the aforesaid` flaps and the gum-moistened tongue being brought in contactwith the inside of one of the side iiaps of the envelop, adhering there' to, securely holding the 11a-ps together.

In the accompanying drawings, Figure l is a top plan View of the envelop-blank. Fig. 2 shows the envelop when folded and fastened. Fig. 3 is aplan view showing the side iiaps overlapping and the slits registering; and Fig. 4i is a reverse View of thetongue, showing the adhesive substance located thereon.

A is the body portion of the envelop.

B B' are the* side iiaps, which have near their outer ends incisions or slits b o', said slits registeringwith one another when the iiaps are folded over, as in Fig. 3. The lower iiap C isalso Vprovided with a slit or incision c, which registers with the aforesaid slits in` the flaps B B'. The upper iiap D is provided with an elongation or tongue el, said tongue d being reinforced at its back by a strip CZ', making a more substantial fastening, said tongue being gummed on its upper side and being adapted to pass through the slits in the `said'flaps andadhere to the inner side of one of the side flaps. The'slits b h' are of such construction as to permit the tongue dto slip easily-therethrough after the adhesive substance carried by the tongue has been moistened without scraping the saidsubstance off against the edges of the said slits. The upper edges of the said slits are straight, and against the said straight edges of the slits the clean side of the tongue passes. The lower edges of the said slits at intermediate points are bowed or recessed. Thus'it will be seen that the edges of the tongue CZ will be retained in the slits by the narrow ends thereof, while the greater portion of the tongue containing the adhesive substance will pass under the recessed or bowed edges of the said slits. Thus the said adhesive substance while in its mois- Then fold up the flap C and adhere its edges tothe aforesaid iiaps, with the slit C registering with the slits b b'. 'Ihe flap D is now folded down and the adhesive on the outer side of the tongue moistened and the tongue inserted through the aforesaid slits, the adhesive on the said tongue causing it to adhereto the inside of the back of the envelop.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

An envelop consisting of a body portion, having side flaps and a bottom ap adapted to be folded over and secured together, each of said iiaps having a slit, all of the slitsregistering when the flaps are folded, said body portion having a top flap provided with a tongue, said tongue adapted to carry adhesive substance, said slits being of similar shape and having straight upper edges and their lower edges at an intermediate point being recessed whereby the tongue may be IOO passed through the registering slits, the clean I In testimony whereof I affix my signature side of the tongue passing along the straight in presence of two witnesses.

upper edges of the slits the parallel ends of 1 the slits lolding the tongue in position and JOHN EDWARD M'MGERM'D' 5 the concaved lower edges of the slits permit- Witnesses:

ting the adhesive substance to pass Within GEORGE C. TABOR,

the envelop without being scraped o. JAMES W. BEASLEY. 

